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Combined Flocculant Systems with Cationic Starches in the Solid/Liquid Separation of Harbor Sediments
Author(s) -
Oelmeyer G.,
Krentz O.,
Kulicke W.M.
Publication year - 2002
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/1521-4125(200201)25:1<47::aid-ceat47>3.0.co;2-h
Subject(s) - flocculation , dewatering , cationic polymerization , chemical engineering , environmental science , chemistry , waste management , materials science , environmental engineering , engineering , organic chemistry , geotechnical engineering
The use of flocculants is essential in solid/liquid separation processes. In many applications inorganic flocculants have been replaced by polymeric ones. For the dewatering of harbor sediments at the METHA plant (Hamburg), for example, a regime consisting of four different synthetic flocculants has been developed. The use of polycations, in particular, poses problems in terms of the biological degradability.